CN111589817B - Subway shield constructs synchronous slip casting belt cleaning device - Google Patents
Subway shield constructs synchronous slip casting belt cleaning device Download PDFInfo
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- CN111589817B CN111589817B CN202010419332.9A CN202010419332A CN111589817B CN 111589817 B CN111589817 B CN 111589817B CN 202010419332 A CN202010419332 A CN 202010419332A CN 111589817 B CN111589817 B CN 111589817B
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- slip casting
- motor
- cleaning device
- grouting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/08—Cleaning containers, e.g. tanks
- B08B9/087—Cleaning containers, e.g. tanks by methods involving the use of tools, e.g. brushes, scrapers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/08—Cleaning containers, e.g. tanks
- B08B9/093—Cleaning containers, e.g. tanks by the force of jets or sprays
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cleaning By Liquid Or Steam (AREA)
Abstract
The invention discloses a subway shield synchronous grouting cleaning device, relates to the technical field of subway engineering, and mainly aims to solve the problems of insufficient cleaning and poor effect of the existing cleaning device; including the installation pivot, drive installation pivot intermittent type pivoted drive unit and spray the unit, the installation pivot runs through slip casting roof portion and rotates with it and be connected, the drive unit drive is connected the installation pivot, spray the unit and install on the installation pivot is located the shaft part of slip casting incasement, spray the unit and include the second motor, the carousel, the pendulum rod, hard water pipe, first minute pipe and second minute pipe, this application is equipped with drive installation pivot intermittent type pivoted drive unit and spray the unit, drive hard water pipe swing, wash the partial lateral wall and the bottom of slip casting case, drive first minute pipe and second minute pipe reciprocating motion simultaneously, the angle that nozzle constantly takes place to change on first minute pipe and the second minute pipe, can fully wash slip casting roof portion and lateral wall, the cleaning efficiency is improved.
Description
Technical Field
The invention relates to the technical field of subway engineering, in particular to a synchronous grouting cleaning device for a subway shield.
Background
The subway shield is an important construction technology in urban subway construction, and is a construction method for underground excavation of tunnels under the ground. The subway shield machine is used for tunneling underground, so that tunnel excavation and lining operation can be safely carried out in the machine while collapse of a soft foundation excavation surface is prevented or the excavation surface is kept stable. The construction process includes excavating a shaft or a foundation pit at one end of a certain section of a tunnel, hoisting a subway shield machine into the tunnel, and driving the subway shield machine from a wall opening of the shaft or the foundation pit and advancing along a designed tunnel line until the subway shield machine reaches the end point of another shaft or tunnel in the tunnel line.
After the subway shield equipment is used, a synchronous grouting system of the subway shield equipment needs to be cleaned, the influence of slurry caking on the next use is avoided, but the cleaning range of the conventional cleaning device is small, and the cleaning is insufficient only by using a water pipe flushing mode.
Disclosure of Invention
The invention aims to provide a synchronous grouting cleaning device for a subway shield, which aims to solve the problems.
In order to achieve the purpose, the invention provides the following technical scheme:
a subway shield constructs synchronous slip casting belt cleaning device, it installs on the slip casting case, is equipped with the charge door on the slip casting case, and slip casting bottom of the case portion is connected with the slip casting pipeline, installs the slip casting pump on the slip casting pipeline, including installation pivot, drive installation pivot intermittent type pivoted drive unit and spraying unit, the installation pivot runs through the slip casting top and is connected with it is rotated, drive unit drive connection installation pivot, spraying unit installs on the shaft section that the installation pivot is located the slip casting incasement, spraying unit includes second motor, carousel, pendulum rod, hard water pipe, first branch pipe and second branch pipe, second motor fixed mounting is in installation pivot bottom, and the output shaft end fixed mounting of second motor has the carousel, the cooperation of carousel front side is connected with the pendulum rod, and the pendulum rod top is articulated with the shaft section that the installation pivot is located the carousel top, and carousel terminal surface outer lane fixed mounting has the cylindric lock, set up on the pendulum rod and supply the cylindric lock to insert and gliding logical groove, pendulum rod bottom fixed mounting has hard water pipe, the even integral type in hard water pipe bottom is equipped with the nozzle, it has two seconds to divide the pipe to articulate on the cylindric lock, the pendulum rod bottom articulates there is two first minutes pipes, and two first minute pipes are articulated with two second minute pipe tip one-to-ones, and two first minute pipes divide the pipe with two seconds to constitute rhombus structure, and two first minute pipes divide the equal integral type of outside with two seconds to be equipped with a plurality of nozzles, all be connected with water supply hose on hard water pipe, first minute pipe and the second minute pipe.
On the basis of the technical scheme, the invention also provides the following optional technical scheme:
in one alternative: the driving unit is a sheave mechanism, the sheave mechanism comprises a first motor, a driving drive plate and a driven sheave, the first motor is fixedly mounted at the top of the grouting box, the driving drive plate is fixedly mounted on an output shaft of the first motor, and the driven sheave matched with the driving drive plate is fixedly mounted on the mounting rotating shaft.
In one alternative: the first motor is connected with the top of the grouting box through a screw.
In one alternative: the turntable is fixed with an output shaft of the second motor through welding.
In one alternative: and a limiting nail is arranged at the end part of the cylindrical pin.
In one alternative: the grouting box also comprises a brushing unit, the brushing unit comprises an installation frame, a lifting mechanism for driving the installation frame to move up and down, a scraper and a hairbrush, the installation frame is distributed along the inner wall of the grouting box, the scraper and the hairbrush are fixedly installed on one side of the installation frame close to the inner wall of the grouting box, the scraper and the hairbrush are both contacted with the inner wall of the grouting box,
in one alternative: the lifting mechanism comprises a third motor, two screw rods and a chain transmission mechanism, the screw rods are respectively rotatably arranged on two sides of the inner cavity of the grouting box, the tops of the two screw rods are connected through the chain transmission mechanism, and the third motor is fixedly arranged on the top of the grouting box and is in driving connection with one screw rod.
Compared with the prior art, the invention has the following beneficial effects:
be equipped with drive installation pivot intermittent type pivoted drive unit and spray the unit, spray the unit and include the second motor, the carousel, the pendulum rod, hard water pipe, first minute pipe and second minute pipe, the second motor drives the carousel and rotates, the carousel drives the cylindric lock and rotates, the cylindric lock drives the pendulum rod swing, the pendulum rod drives hard water pipe swing, thereby wash partial lateral wall and the bottom to the slip casting case, the cylindric lock slides in logical groove of pendulum rod, drive first minute pipe and second minute pipe reciprocating motion, the angle that nozzle constantly changes on first minute pipe and the second minute pipe, thereby make and fully wash slip casting roof portion and lateral wall, the cleaning efficiency is improved.
Drawings
Fig. 1 is a schematic structural diagram of a first embodiment of the present invention.
Fig. 2 is a schematic structural diagram of the active dial in the first embodiment of the present invention.
Fig. 3 is a schematic structural diagram of a second embodiment of the present invention.
Notations for reference numerals: 1-grouting box, 2-hard water pipe, 3-first branch pipe, 4-water supply hose, 5-second branch pipe, 6-rotary table, 7-second motor, 8-through groove, 9-swing rod, 10-cylindrical pin, 11-installation rotating shaft, 12-first motor, 13-driving dial, 14-driven sheave, 15-grouting pump, 16-grouting pipeline, 17-screw rod, 18-chain transmission mechanism, 19-third motor, 20-installation frame, 21-scraper and 22-hairbrush.
Detailed Description
The present invention will be described in detail with reference to the following embodiments, wherein like or similar elements are designated by like reference numerals throughout the several views, and wherein the shape, thickness or height of the various elements may be expanded or reduced in practice. The examples are given solely for the purpose of illustration and are not intended to limit the scope of the invention. Any obvious modifications or variations can be made to the present invention without departing from the spirit or scope of the present invention.
Example 1
Referring to fig. 1-2, in an embodiment of the present invention, a synchronous grouting cleaning device for a metro shield is installed on a grouting box 1, and includes an installation rotating shaft 11, a driving unit for driving the installation rotating shaft 11 to intermittently rotate, and a spraying unit, a feeding port is disposed on the grouting box 1, a grouting pipeline 16 is connected to the bottom of the grouting box 1, and a grouting pump 15 is installed on the grouting pipeline 16, which is the prior art and is not described herein again, the installation rotating shaft 11 penetrates through and is rotatably connected to the top of the grouting box 1, in this embodiment, the installation rotating shaft 11 is preferably rotatably connected to the top of the grouting box 1 through a bearing, the driving unit is connected to the installation rotating shaft 11 in a driving manner, in this embodiment, the driving unit is preferably a sheave mechanism, the sheave mechanism includes a first motor 12, a driving dial 13, and a driven sheave 14, the first motor 12 is fixedly installed on the top of the grouting box 1, in this embodiment, the first motor 12 is preferably connected to the top of the grouting box 1 through a screw, the driving dial 13 is fixedly mounted on an output shaft of the first motor 12, the mounting rotating shaft 11 is fixedly mounted with a driven sheave 14 matched with the driving dial 13, and the mounting rotating shaft 11 can be driven to intermittently rotate through a sheave mechanism;
furthermore, the spraying unit is installed on a shaft section of the installation rotating shaft 11 in the grouting box 1, the spraying unit comprises a second motor 7, a rotary table 6, a swing rod 9, a hard water pipe 2, a first branch pipe 3 and a second branch pipe 5, the second motor 7 is fixedly installed at the bottom end of the installation rotating shaft 11, the end part of an output shaft of the second motor 7 is fixedly provided with the rotary table 6, in the embodiment, the rotary table 6 is preferably fixed with the output shaft of the second motor 7 through welding, the front side of the rotary table 6 is connected with the swing rod 9 in a matching manner, the top end of the swing rod 9 is hinged with the shaft section of the installation rotating shaft 11 above the rotary table 6, the outer ring of the end face of the rotary table 6 is fixedly provided with a cylindrical pin 10, the swing rod 9 is provided with a through groove 8 for the cylindrical pin 10 to be inserted and slide, further, the end part of the cylindrical pin 10 is provided with a limit pin to prevent the cylindrical pin, in this embodiment, the hard water pipe 2 is preferably connected with the swing rod 9 through a screw, the bottom of the hard water pipe 2 is uniformly and integrally provided with nozzles, further, the cylindrical pin 10 is hinged with two second branch pipes 5, the bottom of the swing rod 9 is hinged with two first branch pipes 3, the end portions of the two first branch pipes 3 and the end portions of the two second branch pipes 5 are correspondingly hinged one by one, the two first branch pipes 3 and the two second branch pipes 5 form a diamond structure, the outer sides of the two first branch pipes 3 and the two second branch pipes 5 are uniformly and integrally provided with a plurality of nozzles, the hard water pipe 2, the first branch pipes 3 and the second branch pipes 5 are all connected with water supply hoses 4, during operation, the second motor 7 drives the rotary table 6 to rotate, the rotary table 6 drives the cylindrical pin 10 to rotate, the cylindrical pin 10 drives the swing rod 9 to swing, the swing rod 9 drives the hard water pipe 2 to flush part of the side wall and the bottom, cylindric lock 10 slides in logical groove 8 of pendulum rod 9, drives first minute pipe 3 and second and divides pipe 5 reciprocating motion, and the angle of nozzle constantly changes on first minute pipe 3 and the second minute pipe 5 to make and fully wash 1 top and lateral wall of slip casting case, improved the cleaning efficiency, grouting pump 15 provides power and goes into slip casting pipeline 16 with the water pump and wash.
Example 2
Referring to fig. 3, the embodiment of the present invention is different from embodiment 1 in that the present invention further includes a brushing unit, the brushing unit includes an installation frame 20, a lifting mechanism for driving the installation frame 20 to move up and down, a scraper 21 and a brush 22, the installation frame 20 is distributed along an inner wall of the grouting box 1, the scraper 21 and the brush 22 are fixedly installed on one side of the installation frame 20 close to the inner wall of the grouting box 1, the scraper 21 and the brush 22 are both in contact with the inner wall of the grouting box 1, in this embodiment, the lifting mechanism includes a third motor 19, a screw rod 17 and a chain transmission mechanism 18, two screw rods 17 are respectively and rotatably installed on two sides of an inner cavity of the grouting box 1, the tops of the two screw rods 17 are connected through the chain transmission mechanism 18, the third motor 19 is fixedly installed on the top of the grouting box 1 and is drivingly connected with one screw rod 17, the installation frame 20 drives the scraper 21 and the brush 22 to move, so that slurry stubborn on the inner wall of the grouting box 1 can be scraped, and the cleaning efficiency is further improved.
The working principle of the invention is as follows: the installation rotating shaft 11 can be driven to rotate intermittently through the sheave mechanism, the second motor 7 drives the rotary table 6 to rotate, the rotary table 6 drives the cylindrical pin 10 to rotate, the cylindrical pin 10 drives the swing rod 9 to swing, the swing rod 9 drives the hard water pipe 2 to swing, so that part of the side wall and the bottom of the grouting box 1 are washed, when the cylindrical pin 10 slides in the through groove 8 of the swing rod 9, the first branch pipe 3 and the second branch pipe 5 are driven to reciprocate, the angles of the nozzles on the first branch pipe 3 and the second branch pipe 5 are changed continuously, so that the top and the side wall of the grouting box 1 can be sufficiently washed, the cleaning efficiency is improved, the grouting pump 15 provides power to pump water into the grouting pipeline 16 to wash, the installation frame 20 is driven to move up and down through the lifting mechanism, the installation frame 20 drives the scraper 21 and the hairbrush 22 to move, so that stubborn slurry on the inner wall of the, further improving the cleaning efficiency.
The above description is only for the specific embodiments of the present disclosure, but the scope of the present disclosure is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present disclosure, and all the changes or substitutions should be covered within the scope of the present disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claims.
Claims (7)
1. The utility model provides a subway shield constructs synchronous slip casting belt cleaning device, it installs on slip casting case (1), is equipped with the charge door on slip casting case (1), and slip casting case (1) bottom is connected with slip casting pipeline (16), installs slip casting pump (15) on slip casting pipeline (16), its characterized in that, including installation pivot (11), drive installation pivot (11) intermittent type pivoted drive unit and spraying unit, installation pivot (11) run through slip casting case (1) top and be connected with it is rotated, drive unit drive connection installation pivot (11), spraying unit installs on the axle section that installation pivot (11) is located slip casting case (1), spraying unit includes second motor (7), carousel (6), pendulum rod (9), hard water pipe (2), first minute pipe (3) and second minute pipe (5), second motor (7) fixed mounting is in installation pivot (11) bottom, a rotary table (6) is fixedly installed at the end part of an output shaft of a second motor (7), a swing rod (9) is connected to the front side of the rotary table (6) in a matching mode, the top end of the swing rod (9) is hinged to a shaft section of an installation rotating shaft (11) which is located above the rotary table (6), a cylindrical pin (10) is fixedly installed on the outer ring of the end face of the rotary table (6), a through groove (8) for the cylindrical pin (10) to insert and slide is formed in the swing rod (9), hard water pipes (2) are fixedly installed at the bottom end of the swing rod (9), nozzles are uniformly and integrally arranged at the bottoms of the hard water pipes (2), two second branch pipes (5) are hinged to the cylindrical pin (10), two first branch pipes (3) are hinged to the bottom of the swing rod (9), the end parts of the two first branch pipes (3) and the end parts of the two second branch pipes (5) are correspondingly hinged one to one, and the, two first minute pipes (3) and two second minute pipes (5) outside homogeneous body formula are equipped with a plurality of nozzles, all be connected with water supply hose (4) on hard water pipe (2), first minute pipe (3) and the second minute pipe (5).
2. The subway shield synchronous grouting cleaning device according to claim 1, wherein the driving unit is a geneva mechanism, the geneva mechanism comprises a first motor (12), a driving dial (13) and a driven geneva wheel (14), the first motor (12) is fixedly installed at the top of the grouting box (1), the driving dial (13) is fixedly installed on an output shaft of the first motor (12), and the driven geneva wheel (14) matched with the driving dial (13) is fixedly installed on the installation rotating shaft (11).
3. The subway shield synchronous grouting cleaning device according to claim 2, wherein the first motor (12) is connected with the top of the grouting box (1) through screws.
4. The subway shield synchronous grouting cleaning device according to claim 1, wherein the turntable (6) is fixed with an output shaft of the second motor (7) by welding.
5. The subway shield synchronous grouting cleaning device according to claim 1, wherein a stop pin is arranged at the end of the cylindrical pin (10).
6. The subway shield synchronous grouting cleaning device according to any one of claims 1-5, further comprising a brushing unit, wherein the brushing unit comprises a mounting frame (20), a lifting mechanism for driving the mounting frame (20) to move up and down, a scraper (21) and a brush (22), the mounting frame (20) is distributed along the inner wall of the grouting box (1), the scraper (21) and the brush (22) are fixedly mounted on one side of the mounting frame (20) close to the inner wall of the grouting box (1), and both the scraper (21) and the brush (22) are in contact with the inner wall of the grouting box (1).
7. The subway shield synchronous grouting cleaning device according to claim 6, wherein the lifting mechanism comprises a third motor (19), two screw rods (17) and a chain transmission mechanism (18), the screw rods (17) are respectively rotatably mounted at two sides of the inner cavity of the grouting box (1), the tops of the two screw rods (17) are connected through the chain transmission mechanism (18), and the third motor (19) is fixedly mounted at the top of the grouting box (1) and is in driving connection with one screw rod (17).
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CN202010419332.9A CN111589817B (en) | 2020-05-18 | 2020-05-18 | Subway shield constructs synchronous slip casting belt cleaning device |
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CN202010419332.9A CN111589817B (en) | 2020-05-18 | 2020-05-18 | Subway shield constructs synchronous slip casting belt cleaning device |
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CN111589817B true CN111589817B (en) | 2021-07-06 |
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Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6377561A (en) * | 1986-09-19 | 1988-04-07 | Shionogi & Co Ltd | Washing spray ball |
CN2213580Y (en) * | 1994-12-28 | 1995-11-29 | 陆源 | Cleaning and disinfect device of thermal insulation beer barrel |
DE102009035046A1 (en) * | 2009-07-28 | 2011-02-03 | Bernd Pragst | Device for cleaning large containers |
CN102556003A (en) * | 2011-12-30 | 2012-07-11 | 洛阳圣瑞机电技术有限公司 | Automobile chassis cleaning and baking device |
CN107824586A (en) * | 2017-12-12 | 2018-03-23 | 姜芹 | A kind of medical test tubes cleaning device |
CN208495284U (en) * | 2018-05-03 | 2019-02-15 | 广东九明制药有限公司 | A kind of storage tank of purified water inner wall automatic spray cleaning device |
CN109530364A (en) * | 2018-11-26 | 2019-03-29 | 河北机电职业技术学院 | A kind of electric automatization spray equipment of adaptive container dimensional |
CN209997630U (en) * | 2019-03-20 | 2020-01-31 | 常州天马集团有限公司(原建材二五三厂) | reaction kettle with self-cleaning function |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5720310A (en) * | 1996-08-01 | 1998-02-24 | Moulder; Jeffrey Ernest | Tank car cleaning and rinsing apparatus and method |
CN103850212A (en) * | 2014-03-17 | 2014-06-11 | 王锡山 | Road surface cleaning sewage recovering vehicle and manufacturing method |
CN107159404A (en) * | 2017-07-07 | 2017-09-15 | 冷冰 | A kind of efficient traditional Chinese medicine powder crushing device of easy cleaning |
-
2020
- 2020-05-18 CN CN202010419332.9A patent/CN111589817B/en active Active
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6377561A (en) * | 1986-09-19 | 1988-04-07 | Shionogi & Co Ltd | Washing spray ball |
CN2213580Y (en) * | 1994-12-28 | 1995-11-29 | 陆源 | Cleaning and disinfect device of thermal insulation beer barrel |
DE102009035046A1 (en) * | 2009-07-28 | 2011-02-03 | Bernd Pragst | Device for cleaning large containers |
CN102556003A (en) * | 2011-12-30 | 2012-07-11 | 洛阳圣瑞机电技术有限公司 | Automobile chassis cleaning and baking device |
CN107824586A (en) * | 2017-12-12 | 2018-03-23 | 姜芹 | A kind of medical test tubes cleaning device |
CN208495284U (en) * | 2018-05-03 | 2019-02-15 | 广东九明制药有限公司 | A kind of storage tank of purified water inner wall automatic spray cleaning device |
CN109530364A (en) * | 2018-11-26 | 2019-03-29 | 河北机电职业技术学院 | A kind of electric automatization spray equipment of adaptive container dimensional |
CN209997630U (en) * | 2019-03-20 | 2020-01-31 | 常州天马集团有限公司(原建材二五三厂) | reaction kettle with self-cleaning function |
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